diff --git a/src/main/java/io/kestra/plugin/email/MailSend.java b/src/main/java/io/kestra/plugin/email/MailSend.java
index 6422339..fe7de11 100644
--- a/src/main/java/io/kestra/plugin/email/MailSend.java
+++ b/src/main/java/io/kestra/plugin/email/MailSend.java
@@ -85,7 +85,7 @@
                     type: io.kestra.plugin.email.MailSend
                     from: hello@kestra.io
                     to: hello@kestra.io
-                    attachments: {{ inputs.attachments | toJson }}
+                    attachments: "{{ inputs.attachments | toJson }}"
                 """
         ),
         @Example(